Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums

This article deals with the modeling of vibrating structures immersed in both light and heavy fluids, and possible applications to noise control problems and industrial vessels containing fluids. A theoretical approach, using artificial spring systems to characterize the mechanical coupling between...

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Main Author: L. Cheng
Format: Article
Language:English
Published: Wiley 1996-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.3233/SAV-1996-3305
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author L. Cheng
author_facet L. Cheng
author_sort L. Cheng
collection DOAJ
description This article deals with the modeling of vibrating structures immersed in both light and heavy fluids, and possible applications to noise control problems and industrial vessels containing fluids. A theoretical approach, using artificial spring systems to characterize the mechanical coupling between substructures, is extended to include fluid loading. A structure consisting of a plate-ended cylindrical shell and its enclosed acoustic cavity is analyzed. After a brief description of the proposed technique, a number of numerical results are presented. The analysis addresses the following specific issues: the coupling between the plate and the shell; the coupling between the structure and the enclosure; the possibilities and difficulties regarding internal soundproofing through modifications of the joint connections; and the effects of fluid loading on the vibration of the structure.
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spelling doaj-art-ad4ece4bae414a46be25cbd16925dc262025-08-20T03:04:26ZengWileyShock and Vibration1070-96221875-92031996-01-013319320010.3233/SAV-1996-3305Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy MediumsL. Cheng0Department of Mechanical Engineering, Laval University, Québec, Québec G1K 7P4, CanadaThis article deals with the modeling of vibrating structures immersed in both light and heavy fluids, and possible applications to noise control problems and industrial vessels containing fluids. A theoretical approach, using artificial spring systems to characterize the mechanical coupling between substructures, is extended to include fluid loading. A structure consisting of a plate-ended cylindrical shell and its enclosed acoustic cavity is analyzed. After a brief description of the proposed technique, a number of numerical results are presented. The analysis addresses the following specific issues: the coupling between the plate and the shell; the coupling between the structure and the enclosure; the possibilities and difficulties regarding internal soundproofing through modifications of the joint connections; and the effects of fluid loading on the vibration of the structure.http://dx.doi.org/10.3233/SAV-1996-3305
spellingShingle L. Cheng
Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums
Shock and Vibration
title Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums
title_full Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums
title_fullStr Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums
title_full_unstemmed Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums
title_short Vibroacoustic Modeling of Mechanically Coupled Structures: Artificial Spring Technique Applied to Light and Heavy Mediums
title_sort vibroacoustic modeling of mechanically coupled structures artificial spring technique applied to light and heavy mediums
url http://dx.doi.org/10.3233/SAV-1996-3305
work_keys_str_mv AT lcheng vibroacousticmodelingofmechanicallycoupledstructuresartificialspringtechniqueappliedtolightandheavymediums